Use of Chlorella as a carrier of organic-bound iodine in the nutrition of sows
2004
Kotrbacek, V. (Veterinarni a Farmaceuticka Univ., Brno (Czech Republic)) | Doucha, J. | Offenbartl, T.
The effect of supplementation with iodine incorporated into the biomass of Chlorella on the concentration of this element in colostrum and milk was investigated in sows of the Large White breed. Experiments were conducted in two elite herds with 1,549 microg I per kg (farm A) or 228 microg I per kg (farm B) in feed mixtures. The experimental animals received 450 microg per head/day of I bound in Chlorella biomass. The total iodine uptake was 5,097 microg per head/day on farm A and 1,134 microg per head/day on farm B. The supplementation of Chlorella-bound I increased significantly the concentration of this element in colostrum from 365 to 492 migrog/L on farm A and from 241 to 391 microg/L on farm B. I concentrations in milk decreased in all sows, particularly in the animals included in both experimental groups, where it decreased to about half the values detected in colostrum. No relationship was established between the number of reared piglets and supplementation of organically bound I. The supplementation of I bound in Chlorella biomass increased its concentration in colostrum of sows with both the low and the high dietary uptake of this element, which proved its good utilisation.
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